Reference
Modes
Drum Dojo has generated practice sets and a custom pattern writer. Generated sets use Pattern, Mode, Time, Difficulty, and one Bar 2 setting to write short reading lines; custom patterns let you author the two-bar idea directly.
What Changes Generated Notes
These settings change the rhythms and drum placements that appear in generated notation.
Pattern
Eighths
A steady eighth-note grid. Conventional mode keeps the hi-hat moving while kick and snare use the beat and & counts.
Sixteenths
A full 16th-note grid where kick, snare, and hi-hat decisions can land on 1-e-and-a positions.
Mixed
Each notated beat can use an eighth-note or 16th-note grid, so the line changes subdivision without changing the two-bar form.
Mode
Conventional
Groove-oriented placement. Hi-hat is the guide layer, kick favors structural starts, and snare favors backbeat or pulse positions.
True Random
Position-agnostic placement. Closed hi-hat, kick, and snare are sampled independently at each event position.
Time
4/4
Four quarter-note beats.
3/4
Three quarter-note beats.
6/8
Two dotted-quarter pulses grouped 3+3.
5/4 (3+2)
Five quarter-note beats grouped 3+2.
5/4 (2+3)
Five quarter-note beats grouped 2+3.
7/8 (3+2+2)
Seven eighth-note beats grouped 3+2+2.
7/8 (2+3+2)
Seven eighth-note beats grouped 2+3+2.
7/8 (2+2+3)
Seven eighth-note beats grouped 2+2+3.
Difficulty
Easy Beginning
Conventional grooves stay sparse and anchored. In True Random mode, each supported drum uses 20% per-position density.
Medium Intermediate
Conventional grooves add off-beat bass drum and occasional snare movement. In True Random mode, each supported drum uses 35% per-position density.
Hard Expert
Conventional grooves allow busier syncopation, more off-beat snare, and more kick/snare stacks. In True Random mode, each supported drum uses 50% per-position density.
Bar 2
Repeat
Bar 2 repeats bar 1 exactly.
Independent
Bar 2 is generated separately under the same settings.
What Changes Playback And Output
These controls change how much notation is displayed, when it is regenerated, and how it plays back.
Lines
Choose 2, 4, 8, 16 visible lines. Each line is one 2-bar exercise.
Tempo
Playback runs from 30 to 300 BPM, with 92 BPM as the default.
Randomize Set
Rewrites the current generated set while keeping the selected Pattern, Mode, Time, Difficulty, Bar 2, Lines, and Tempo.
Per-line playback
Every visible notation line has its own playback control and uses the current tempo.
Custom Pattern
Custom authoring sits beside generated practice when you want to build the exact line instead of asking the generator for one.
Two-bar writer
The editor writes 2 bars in the selected meter on either an eighth-note or 16th-note grid.
Scoped presets
Presets are scoped to the selected meter: 9 per meter, 3 per difficulty tier, and 72 total across all supported meters.
Supported drums
Closed Hi-Hat, Bass Drum, Snare Drum.
Articulations
Drum hits can be normal, ghost, or accent, and the custom preview shows those articulation choices in notation.
Notation and playback preview
The score preview updates from the custom draft and can be played back from the same page.